13942861 has 2 divisors, whose sum is σ = 13942862. Its totient is φ = 13942860.

The previous prime is 13942811. The next prime is 13942871. The reversal of 13942861 is 16824931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13920361 + 22500 = 3731^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 13942861 - 2¹⁷ = 13811789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13942811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971430 + 6971431.

It is an arithmetic number, because the mean of its divisors is an integer number (6971431).

Almost surely, 2^13942861 is an apocalyptic number.

It is an amenable number.

13942861 is a deficient number, since it is larger than the sum of its proper divisors (1).

13942861 is an equidigital number, since it uses as much as digits as its factorization.

13942861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 13942861 is about 3734.0140599628. The cubic root of 13942861 is about 240.6858909486.

The spelling of 13942861 in words is "thirteen million, nine hundred forty-two thousand, eight hundred sixty-one".